August 2007

ASM3P2854B

rev 0.3

Custom Clock Generator for Fax System

4 of 8

Notice: The information in this document is subject to change without notice.

DC Electrical Characteristics

Symbol

Parameter

Min

Typ

Max

Unit

Input low voltage

GND - 0.3

0.8

V

Input high voltage

2.0

VDD + 0.3

V

Input low current

-35

µA

Input high current

35

µA

3

mA

3

mA

0.4

V

2.5

V

Static supply current*

14

mA

Dynamic supply current ( VDD=3.3V, No Load)

33

mA

VDD

Operating Voltage

3.0

3.3

3.6

V

VDD_FOUT

Operating Voltage

3.0

3.3

3.6

V

Power-up time (first locked cycle after power-up)

5

mS

Output impedance

37

Ω

* XIN pin is pulled low

AC Electrical Characteristics

Symbol

Parameter

Min

Typ

Max

Unit

XIN / CLKIN

Input frequency

24

At Pin 7

48

At Pin 8

12

At Pins 9 and 10

33

At Pins 12 and 13

66

At Pin 15*

PCLK

Output frequency

At Pin 16

25

MHz

Output Frequency = 25MHz

-0.45

Output Frequency = 33.3MHz

-0.6

Frequency Deviation

Output Frequency = 66.6MHz

-1.2

%

Output rise time (measured from 0.8 to 2.0V)

1.0

Output fall time (measured at 2.0V to 0.8V)

1.0

nS

Jitter (Cycle to cycle)

250

pS

Output duty cycle

45

50

55

%

* See the PCLK Selection Table for PCLK Frequency